EP 2534106 A1 20121219 - METHOD FOR MODULATING IONIC STRENGTH
Title (en)
METHOD FOR MODULATING IONIC STRENGTH
Title (de)
VERFAHREN ZUM MODULIEREN VON IONENSTÄRKE
Title (fr)
METHODE DE MODIFICATION DE LA FORCE IONIQUE
Publication
Application
Priority
- US 42345810 P 20101215
- US 30317010 P 20100210
- CA 2011050075 W 20110210
Abstract (en)
[origin: WO2011097727A1] A method and system for reversibly converting water between an initial ionic strength and an increased ionic strength, using a switchable additive, is described. The disclosed method and system can be used, for example, in distillation-free removal of water from solvents, solutes, or solutions. Following extraction of a solute from a medium by dissolving it in water, the solute can then be isolated from the aqueous solution or "salted-out" by converting the water to a solution having an increased ionic strength. The solute then separates from the increased ionic strength solution as a separate phase. Once the solute is, for example, decanted off, the increased ionic strength aqueous solution can be converted back to water having its original ionic strength and reused. Switching from lower to higher ionic strength is readily achieved using low energy methods such as bubbling with CO2, CS2 or COS. Switching from higher to lower ionic strength is readily achieved using low energy methods such as bubbling with air, heating, agitating, introducing a vacuum or partial vacuum, or any combination or thereof.
IPC 8 full level
C02F 1/44 (2006.01); B01D 17/02 (2006.01); B01D 61/02 (2006.01); C02F 1/26 (2006.01)
CPC (source: EP US)
B01D 61/005 (2013.01 - EP US); C02F 1/008 (2013.01 - EP US); C02F 1/44 (2013.01 - EP US); C02F 1/445 (2013.01 - EP US); C02F 1/68 (2013.01 - US); B01D 61/025 (2013.01 - US); C02F 1/02 (2013.01 - US); C02F 1/20 (2013.01 - EP); C02F 1/441 (2013.01 - EP); C02F 1/5281 (2013.01 - US); C02F 2103/08 (2013.01 - EP); C02F 2103/10 (2013.01 - EP); C02F 2209/05 (2013.01 - EP US); Y02A 20/124 (2018.01 - EP); Y02A 20/131 (2018.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011097727 A1 20110818; AU 2011214865 A1 20120906; AU 2011214865 B2 20151105; BR 112012020112 A2 20200811; BR 112012020112 B1 20210824; CA 2789498 A1 20110818; CA 2789498 C 20190402; CN 102892713 A 20130123; CN 102892713 B 20160504; EP 2534106 A1 20121219; EP 2534106 A4 20160106; EP 2534106 B1 20191016; EP 3653584 A1 20200520; HK 1177927 A1 20130830; IL 221391 A0 20121031; IL 221391 B 20190926; JP 2013518718 A 20130523; JP 2016128164 A 20160714; JP 2018103180 A 20180705; JP 6431658 B2 20181128; MX 2012009296 A 20121106; MX 364273 B 20190422; SG 10201501027X A 20150429; SG 183909 A1 20121030; US 11498853 B2 20221115; US 2013105377 A1 20130502; US 2019315637 A1 20191017
DOCDB simple family (application)
CA 2011050075 W 20110210; AU 2011214865 A 20110210; BR 112012020112 A 20110210; CA 2789498 A 20110210; CN 201180012690 A 20110210; EP 11741795 A 20110210; EP 19202927 A 20110210; HK 13105715 A 20130514; IL 22139112 A 20120809; JP 2012552216 A 20110210; JP 2016016551 A 20160129; JP 2018020594 A 20180208; MX 2012009296 A 20110210; SG 10201501027X A 20110210; SG 2012065603 A 20110210; US 201113578290 A 20110210; US 201916279221 A 20190219